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The UCR Minicore: a valuable resource for cowpea research and breeding

dc.contributor.authorMunoz-Amatriain, M.
dc.contributor.authorLo, S.
dc.contributor.authorHerniter, I.
dc.contributor.authorBoukar, O.
dc.contributor.authorFatokun, C.
dc.contributor.authorCarvalho, E.
dc.contributor.authorCastro, I.
dc.contributor.authorGuo, Y.
dc.contributor.authorHuynh, B.
dc.contributor.authorRoberts, P.A.
dc.contributor.authorCarnide, V.
dc.contributor.authorClose, T.J.
dc.date.accessioned2021-07-07T11:04:22Z
dc.date.available2021-07-07T11:04:22Z
dc.date.issued2021-06
dc.identifier.citationMuñoz‐Amatriaín, M., Lo, S., Herniter, I.A., Boukar, O., Fatokun, C., Carvalho, M., ... & Close, T.J. (2021). The UCR Minicore: a valuable resource for cowpea research and breeding. Legume Science, 3(2),1-15.
dc.identifier.issn2639-6181
dc.identifier.urihttps://hdl.handle.net/20.500.12478/7159
dc.description.abstractIncorporation of new sources of genetic diversity into plant breeding programs is crucial for continuing to improve yield and quality, as well as tolerance to abiotic and biotic stresses. A minicore (the “University of California, Riverside (UCR) Minicore”) composed of 368 worldwide accessions of cultivated cowpea has been assembled, having been derived from the UCR cowpea collection. High-density genotyping with 51,128 SNPs followed by principal component and genetic assignment analyses identified six subpopulations in the UCR Minicore, mainly differentiated by cultivar group and geographic origin. All six subpopulations were present to some extent in West African material, suggesting that West Africa is a center of diversity for cultivated cowpea. Additionally, population structure analyses supported two routes of introduction of cowpea into the U.S.: (1) from Spain to the southwest U.S. through Northern Mexico and (2) from Africa to the southeast U.S. via the Caribbean. Genome-wide association studies (GWAS) narrowed several traits to regions containing strong candidate genes. For example, orthologs of the Arabidopsis FLOWERING LOCUS T lie within a major QTL for flowering time. In summary, this diverse, yet compact cowpea collection constitutes a suitable resource to identify loci controlling complex traits, consequently providing markers to assist with breeding to improve this crop of high relevance to global food and nutritional security.
dc.description.sponsorshipFeed the Future Innovation Lab for Climate Resilient Cowpea
dc.description.sponsorshipNational Science Foundation
dc.format.extent1-15
dc.language.isoen
dc.subjectCowpeas
dc.subjectGenomics
dc.subjectPlant Breeding
dc.subjectGrain Legumes
dc.subjectQuantitative Trait Loci
dc.subjectFood Security
dc.subjectNutrition
dc.titleThe UCR Minicore: a valuable resource for cowpea research and breeding
dc.typeJournal Article
cg.contributor.crpGrain Legumes
cg.contributor.affiliationUniversity of California
cg.contributor.affiliationColorado State University
cg.contributor.affiliationRutgers University
cg.contributor.affiliationInternational Institute of Tropical Agriculture
cg.contributor.affiliationUniversity of Tras-os-Montes and Alto Douro
cg.coverage.regionAfrica
cg.coverage.regionLatin America
cg.coverage.regionNorth America
cg.coverage.regionWest Africa
cg.coverage.countryMexico
cg.coverage.countryNigeria
cg.coverage.countryUnited States of America
cg.coverage.hubEastern Africa Hub
cg.coverage.hubHeadquarters and Western Africa Hub
cg.researchthemeBiotech and Plant Breeding
cg.identifier.bibtexciteidMUNOZAMATRIAIN:2021
cg.authorship.typesCGIAR and advanced research institute
cg.iitasubjectAgronomy
cg.iitasubjectCowpea
cg.iitasubjectFood Security
cg.iitasubjectGenetic Improvement
cg.iitasubjectGrain Legumes
cg.iitasubjectNutrition
cg.iitasubjectPlant Breeding
cg.iitasubjectPlant Genetic Resources
cg.iitasubjectPlant Production
cg.journalLegume Science
cg.notesOpen Access Journal; Published online: 06 May 2021
cg.accessibilitystatusOpen Access
cg.reviewstatusPeer Review
cg.usagerightslicenseCreative Commons Attribution 4.0 (CC BY 0.0)
cg.targetaudienceScientists
cg.identifier.doihttps://dx.doi.org/10.1002/leg3.95
cg.iitaauthor.identifierChristian Fatokun: 0000-0002-8428-7939
cg.futureupdate.requiredNo
cg.identifier.issue2
cg.identifier.volume3


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